Dough-kneading machine.



PATENTED OCT. 25, 1904.

G. M. EULER.

DOUGH KNEADING MACHINE.

APPLICATION FILED JAN. 9, 1904.

3 SHEETS-SHEET 1.

N0 MODEL WITNESSES.

.WCDM.

MAW/3K A 'OHNEYS No 778,380. PATENTED 001". 25, 1904. G. M. EULBR.

DOUGH KNEADING MACHINE.

APPLICATION FILED JAN. 9, 1904. no MODEL. 3 SHEETS-SHEET 2.

.111, ii D W v H 7/ g5 INVENTOR a earymjzfl Z6281 A TTOHNE VS No.773,380. PATENTED OCT. 25, 1904.

I G. M. BULER.

DOUGH KNEADING MACHINE.

APPLICATION PILB D JAN. 9, 1904.

N0 MODEL. SSHEETS-SHEET 3,

WITNESSES: I I INVEN TOR Q/U. BY

. Arron/v1.98

GEORGE MICHAEL EULER,

Patented October 25, 1904.

PATENT union.

.OF ST. LOUIS, MISSOURI.

DOUGH-KNEADING MACHINE.

SPECIFICATION forming part of Letters Patent No. 773,380, dated October25, 1904.

Application filed January 9, 1904.

To all whom it may concern:

Be it known that I, GEORGE MIoHAEL EULER, a citizen of the UnitedStates, and a resident of St. Louis, in the State of Missouri, haveinvented a new and Improved Dough-Kneading Machine, of which thefollowing is a full, clear, and exact. description.

My invention relates to dough-kneading machines and analogous devices inwhich it is desirable to knead or work a plastic substance, such asdough, and in which it is desirable to shift the same from one pan toanother with a minimum expenditure of labor.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar characters of reference inclicatecorresponding parts in all the figures.

Figure 1 is a vertical section through a machine embodying my inventionand taken in the plane of the line 1 1 in Fig. 2. Fig. 2 is a verticalsection taken at right angles to the 1 view shown in Fig. 1 and upon theline 2 2 in Fig. 1 looking in the direction of the ar row. Fig. 3 is afragmentary vertical section through the gearing for rotating the pans.Fig. 4 is a fragmentary section somewhat similar to the upper portion ofFig. 1 and show ing in dotted and full lines certain movements of thepans; and Fig. 5'is a side elevation, partly broken away, viewed fromthe reverse side of Fig. 4. V

The frame members 6 7 are bolted together at 7, so as to constitute thegeneral framework of the machine. Braces 7 and 8 are employed for thepurpose of rendering the framework rigid and strong. A revoluble shaft 9is mounted within bearings 10 and is provided with loose and fixedpulleys 11 12, with a fly-wheel 13, and with aspur-gear 14, these partsbeing of ordinary construction. The spur-gear 14 meshes with a largerspurgear 15 for the purpose of communicating power to certain movableparts, as hereinafter described. Mounted rigidly upon the shaft 9 is apulley 16, which communicates motion to another pulley 19 by means of abelt 18. The pulley 19 is rigidly mounted upon 3. revoluble shaft 20,which is supported within bearings 21. Mounted upon this shaft is aloose friction-gear member 22, integrally con- Serial No. 188,276. (Nomodel.)

nected with a smaller bevel-gear 25. Rigidly mounted upon the shaft 20is another frictiongear member 23, secured to the shaft by means of abolt 28. The bevel-gear meshes with similar bevel-gears 24 and 26, bothof which latter gears mesh with a small bevel-gear 27 the bevel-gears 24and 26 being mounted on stems 33 34, in turn rigidly mounted upon astationary head 32, which encircles the shaft 20. The small gear 27 issecured rigidly to the shaft 20 by means of the set-screw 29. A collar30 is likewise secured rigidly to the shaft 20 by means of a set-screw31. By means of lock-nuts 34 or equivalent fastening members thebevel-gears 24 and 26 are prevented from leaving the stems 33 or 34, asindicated in Fig. 3. A friction bevel gearwheel 35 is free to engage thefriction-gear members 22 and 23, so as to be rotated at intervalsthereby.

The pans are shown at 37, and each pan is connected with the bevelgear-wheel 35 and with a stem 37, as indicated in Fig. 3, so that therotation of either gear-wheel 35 causes the correspondingrotation of oneof the pans 37. Mounted upon each side of each. pan 37 is a sector 38,these sectors being arranged in pairs, as indicated in Fig. 2, andconnected by a bridge member 39, having braces 39*. Each bridge member39 is provided with an enlargement 36, through which the stem 37 of thepan passes, .as indicated in Fig. 3, the stem being covered by a shield37 The head 32 is stationary and is mounted loosely on the shaft 20 andis prevented from turning by connecting either stem 33 or 34 by means ofa rod, chain, or other suitable device with the frame of the machine. Ashere shown, (see Fig. 1,) the stem 34 is connected to the frame of themachine by a bracket 34 and a nut 34.

The frame-work is provided with suitable guides 40, 40*, 40, and 40, ofthe shape indicated more particularly in Fig. l. The guide 40 isprovided with an inclined portion 41 and with a curved portion 42, thecurved portion serving as atrip for shifting the relative angularposition of each pan. end of the guide 40 is provided with a loop 40.The guide 40 terminates at its lower The lower IOO end in a crook andthe guide 4O is provided with a portion 40 opposite this crook. Theportion 41 of the guide 40" adjacent to the curved portion 42 terminatesin a rounded lip 43, secured at 44 to the brace 8, as indidated inFig. 1. Each sector 38 is provided with rollers 45, 46, 47, the rollers46 being pivotally connected with chains 48 and movable therewith. Therollers and 47 are disconnected from this chain and are free to assumevarious positions in relation thereto, as indicated by dotted lines inFig. 4. The chains 48 engage four sprocket-wheels 49, 50, 51, and 52,disposed in the positions indicated more particularly in Fig. 1. Thesprocket-wheel 49 is rigidly mounted upon a shaft 53, this shaft beingprovided with clutch members 54 55, the clutch member 55 being connectedwith a pulley 56, this pulley receiving its power by means of a belt 57from the power-pulley 17, mounted upon the shaft 9, as indicated in Fig.1, the shaft 9 in turn receiving its power from the power-pulleys 11 12,as above described. The clutch members are thrown into and out ofengagement by a fork 70. A gate 58, preferably removable, is used, asindicated in Figs. 1 and 2, for allowing access to the pan37 when in itslowermost position. An idler 62, mounted upon a swinging arm 59, engagesthe belt 57 for the purpose of keeping the same taut. Anadjustment-screw 60 passes through a rib 61 upon the framework andengages the movable bearing 60, thereby enabling the sprocket-wheel 52to be shifted laterally, as indicated by dotted lines in Fig. 1, so asto regulate the tension of the sprocket-chain 48.

The upper kneading-roll is shown at 63 and the lower' one at 64, theserolls being respectively mounted upon revoluble shafts 66, substantiallyin the usual manner. By means of slidable bearings 65, controlled byadjustment-screws 65, the roll 63 may be adjusted with reference to theroll 64 without interfering with the proper functions of either roll. Ahopper 65 is used for guiding the dough between the rolls 63 and 64. Theshafts 65 66 are provided, respectively, with gear-wheels 67 68, meshingwith somewhat similar gears 68 and 69 on shafts 66 and 69. Power iscommunicated by means-of the fixed pulley 11 to the shaft9 and fly-wheel13. By means of the gears 14 and 15 power is transferred from the shaft66 to the roll 64 and thence across the machine from the shaft 66 to thegearing shown at the left in Fig. 2 and thence to the roll 63 by meansof the shaft 65. The power is thusindirectly transferred from the roll64 to the roll 63 in order to prevent interfering with the adjustment ofthe roll 63 relatively to the roll 64, as above described.

A rocking shaft 70 is provided with a handle 71 and with aradially-disposed arm 72, and said arm is connected by means of a link73 with a lever 74, having upon its outer end a beveled lug 7 5 which atraveling wedge 76, chain 48.

My invention is used as follows: Assume that the dough is lying in thelower pan 37 and the operator desires to run the dough be tween therolls. He grasps the handle 71 and turns the rocking shaft 70 through aslight angle, thereby raising the radially-disposed arm 72 and the link73, and thus lowering the upper or free end of the lever 74 and thebeveled lug 75, so that the latter will lie in the path of the travelingwedge '76. This movement of the rocking shaft 70 of course causes anangular movement of the fork 7 O, and thereby shifts the clutch member54 into engagement with the clutch member As the belt 57 is givingmotion to the pulley 56 it follows that the clutch engages as abovedescribed and power is given to the shaft 53, and consequently to thesprocket-wheel 49. This drives the sprocket-chain 48, and consequentlyshifts the positions of the pans 37. The lower pan 37 being of coursesuspended by means of the rollers 46 travels to the left, so that theroller 47 passes into the lower end may be engaged by mounted upon the'of the guideway-that is, between the ends 40 and 40the rollers 45 and46 remaining horizontal relatively to each other. This causes the pan tomaintain its horizontal or normal position. (Indicated at the bottom ofFigs. 1 and 2.) The movements of the chains 48 carry the pan verticallyupward, the rollers 47 passing the corner 40 of the guide 40. Arrivingat the top of the frame, where the chains 48 pass over thesprocket-wheels 50, the pan of course turns at a right angle, assumingthe position shown in full lines at the top of Figs. 1, 2, and 4.Arriving in this position the dough is dropped from the upper pan 37into the hopper65 ready to be acted upon by the rolls 63 and 64. At thismoment the traveling wedge 76 engages the lug upon the lever 7 4,thereby raisingthc upper or free end of this lever, causing the link 73and the arm 72 to descend, and thereby shift the angular position of thefork 70,(see Fig. 2,) so as to move the clutch member 54, therebydisengaging the grip of the clutch. This throws the sprocket-wheels outof action and stops the bodily travel of the pans, which then assume theposition indicated in Fig. 1. The rolls 63 64 continue to rotate,however, so that the dough is passed between them and gradually fed.into the lower pan 37. This pan while no longer traveling under themovements of the chains has, nevertheless, a movement of a differentcharacter conferred upon it by the rotation of the friction gear-wheel35. The belt 18 receives power continuously from the shaft 9 and causesthe shaft 20 to rotate constantly. The bevel-gears 23 and 27 being fixedupon the shaft 20 must also rotate constantly. The bevel-gear 27 drivesthe bevelgears 24, 25, and 26, as above described, thereby giving motionto the friction-gear 22, so that the wheels 22 and 23 always rotate inopposite directions. If now the frictionwheel 35 engages these wheels 22and 23 or either of them, motion is communicated to the wheel 35 andthrough it to the lower pan 37. \Vhile normally the friction-wheel 35will engage both wheels 22 and 23, it may sometimes happen through lackof adjustment that the wheel 35 touches but one, and in this event therotation of the pan is not interfered with in the least. If the operatordesires to repeat the operation, he merely turns the handle 71, as abovedescribed, causing the clutch members 54 and 55 to engage. This startsup the chains 48 and causes the pans to exchange places, as abovedescribed. The machine stops automatically upon arriving at the positionindicated in Fig. 1.

The object contemplated in rotating the lower pan of the machine is tochange the position of the dough relatively to the kneadingrolls afterthe dough has passed between said rolls.

The position of the mechanism when started by the operator is shown inFig. 4, the traveling wedge T 6 having passed the lug 7 5 and the upperfree end of the lever 74 being depressed because of the operatorscontrol of the handle '71. In practical operation it'is usuallynecessary to run the dough between the rolls eight or ten times beforethe kneading is complete. If the rolls 63 or 64: need adjustmentrelatively to each other, this is accomplished by the screws 65, asabove described. In order to loosen or tighten the sprocket-chains, thesprocket-wheels 52 are moved in a horizontal direction by means of theadj Listing-screws 60.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. In a dough-kneading machine, the combination ofmechanism for working the dough, a plurality of pans movable relativelyto said mechanism, means for shifting said pans in predeterminedpositions relatively to said mechanism, and gearing for causing saidpans to rotate.

2. In a dough-kneading machine, the combination of a frame, a pluralityof revoluble rolls mounted therein, sprocketwheels mount ed upon saidframe, sprocket-chains engaging said sprocket-wheels, mechanismconnected with said sprocket chains for supporting pans, means forintermittingly actuating said mechanism so as to cause said pans toassume definite predetermined positions relatively to said rolls, andmechanism for automatically causing said pans to rotate.

3. In a dough-kneading machine, the combination of dough-workingmechanism, longitudinal flexible members disposed adjacentto the sameand free to move, pans connected with said longitudinal flexiblemembers,means for causing said pans to perform complete revolutions,clutch mechanism for throwing said longitudinal flexible members intoand out of action, and mechanism controllable by movements of saidlongitudinal flexible members for automatically throwing said clutchmechanism out of action so as to stop said pans in certain predeterminedgeneral positions.

4. In a dough-kneading machine, the combination of a frame, revolublerolls mounted therein, pans supported by said frame and movablerelatively to said rolls, means for moving said pans bodily intodifferent predetermined positions relatively to said rolls, revolublemembers rigidly connected with said pans, and automatic mechanism forintermittently actuating said revoluble members for the purpose ofcausing said pans to rotate.

5. In a dough-kneading machine, the combination of a frame,revolublesprocket-wheels connected therewith, longitudinal flexiblemembers engaging said revoluble members, pans connected with saidlongitudinal flexible members, mechanism disposed adjacent to said pansfor the purpose of working dough and depositing the same therein, andmechanism connected with said revoluble members for adjusting thetension of the longitudinal flexible members.

6. In a dough-kneading machine, the combination of a frame provided withguides, rollers for engaging said guides, sprocket-chains for supportingsaid rollers independently of said guides, supporting members mountedupon said rollers, pans rotatably mounted upon said supporting members,means for ac tuating said sprocket-chains so as to shift said pans intodilferent general positions, and means for working dough and feeding thesame to and from said pans in said different general positions.

7. In a dough-kneading machine, the combination of mechanism for workingthe dough, guides extending over and under said working mechanism,rollers engaging said guides, carriers supported by said rollers andadapted to perform complete revolutions, endless,flexible connectingmembers between said carriers, and mechanism for imparting longitudinalmovement to said connecting members, said guides androllers coactingduring the travel of said carriers to change the position of saidcarriers in relation to the connecting members.

8f In a dough-kneading machine, the combination of mechanism for workingthe dough,

a plurality of receptacles adapted to trip rela-.

tively to said mechanism and adapted to make complete revolutions, meansfor shifting said receptacles from a position to feed dough to theworking mechanism to a position to receive dough from said workingmechanism,

and mechanism for suddenly tilting said receptacles.

9. In a dough-kneading machine, the combination of rolls for Working thedough, a pan to this specification in the presence of two subto bedisposed adjaeentto said rolls andadaptscribing Witnesses.

ed t 0 make ceinplete i'evelutions, and nutp- GEORGE MICHAEL EULER maticmechanism tor causing said pan to tilt suddenly when it reaches apredetermined WVitnesses: point relatively to said rolls. \V. B. JAMES,

In testimony whereofllmve signed my name JOHN H. BA'LZ, J1.

